Presentations of the Scientific Colloquium 'Plant Health at the Age of Metagenomics' organised by the European and Mediterranean Plant Protection Organization and the Euphresco network for phytosanitary research coordination and funding. Presentation Bilodeau: Genome-enhanced detection and identification of plant pathogens Presentation Cellier: Practical use of metagenomics: the case study of the Ralstonia solanacearum species complex Presentation Cubero: Genomics as a tool for the diagnosis of bacterial diseases: the case of Xanthomonas arboricola pv. pruni, the causal agent of bacterial spot of stone fruits Presentation Fox: Using collections to support pest risk assessment of novel and unusual pests discovered through HTS Presentation Hammond-Kosack: Using a FAIR database and bioinformatics analyses to improve plant, human, animal and ecosystem health Presentation Massart: Genome-based pest risk assessment for newly discovered plant viruses: Nazca lines or Rosetta stone? Presentation Saunders: The wheat-rust conflict and the long reach of genomics